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When installing or removing an optional module, pay attention to the following points:
Do not use excessive force during the operation and do not touch the surface-mounted
components directly with your hands.
After removing a module, if the slot is to remain empty, install a blank panel to prevent dust and
ensure normal ventilation in the device.
Installation Verification
During the installation of the device, always verify the installation before powering on the device:
The power supply system meets the device requirements.
The ground cable is correctly connected.
Both the console cable and power cables are correctly connected.
All interface cables are routed indoors. If outdoor routing of cables cannot be avoided, check that
network port lightning arrestors and an AC power supply lightning arresters have been correctly
installed. For details, refer to Appendix B and Appendix C.
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